|Version|Date|Development cycle|Size (in kb)|Download|Notes|
|---|---|---|---|---|---|
|0.1|9 June 1993|Beta|?|evolt||
|0.2|14 June 1993|Beta|?|?|Changelog|
|0.3|16 June 1993|Beta|?|?|Changelog|
|0.4|18 June 1993|Beta|?|?|Changelog|
|0.5|24 June 1993|Beta|?|?|Changelog|
|0.6|30 June 1993|Beta|?|?|changelog|
|0.8|5 November 1993|Beta|N/A|N/A|Changelog (Distinct version discontinued)|
|0.9|12 November 1993|Beta-pre|?|[2]||
|0.9|16 November 1993|Beta|?|[3]|Changelog|
|0.9|22 November 1993|WINSOCK alpha r9.2|?|[4]||
|1.0|17 February 1994|Release|?|evolt||
|1.01|?|Release|?|?||
|1.01a|17 March 1994|release|521|[5], evolt|Changelog|
|2.0|N/A|Alpha|N/A|N/A|development ceased|

Question: how may total versions of cello where there?
Answer: 13